Description:

dart debouncer

Dart debouncer
A package for creating debounce in dart will possibilities of multi instances debounce. With no singleton pattern, this package provides a convenient way to handle debouncing scenarios for user interactions, such as button presses or text input changes, in order to enhance the user experience and avoid unintended actions, unnecessary logic execution or frequent updates.

How to use #
First, instanciate a Debouncer class.
final Debouncer debouncer = Debouncer();
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Then, in any place, use it.
TextFormField(
...
onChanged: (final String text) {
decouncer.resetDebounce(() {
// Do something with the text
});
},
),
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Don't forget to dispose the debounce timer after using it #
debouncer.dispose();
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⚠️ Note: Calling dispose is not mandatory. But if you don't dispose it the function will be executed even if you are not more in the context where it has been placed. So if, for example, the function inside the debouncer uses a dependencies that dosen't exist any more you will get an error. This will basically cancel the debounce timer and execution.
Other helpfull functions #
Add a function that will be executed before debounce execute function #
You can add how many functions you want. They will run in the order they where added.
debouncer.addOnInitFunction(() {
print('start 1');
});
debouncer.addOnInitFunction(() {
print('start 2');
});
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Add a function that will be executed after debounce execute function #
You can add how many functions you want. They will run in the order they where added.
debouncer.addOnEndFunction(() {
print('end 1');
});
debouncer.addOnEndFunction(() {
print('end 2');
});
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Garantee an function will not bee runned in parallel to the debouncer function #
Whant to run a function but ensure it won't run at the same time an asyncronous execute function is running on the debouncer? No problem, Use garanteedExecutionAfterDebounceFinished for that.
final debouncer = Debouncer(timerDuration: Duration(seconds: 1));

decouncer.resetDebounce(() {
await Future.delayed(Duration(seconds: 1));
print('Done!');
});

// Will not execute until debounce function is running. Will wait it finish first
debounter.garanteedExecutionAfterDebounceFinished(() {
print('Only runned after 2 seconds');
});
print(isDebouncerRunning);
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Know if debounce function is active/running #
final debouncer = Debouncer(timerDuration: Duration(seconds: 1));
final bool isDebouncerRunning = debounter.isTimerActive();
print(isDebouncerRunning);
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Change debounce duration #
// The debouncer time is 1 sec
final debouncer = Debouncer(timerDuration: Duration(seconds: 1));

// Now the timer is 3 secs
debounder.updateTimer(Duration(seconds: 3));
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Duration extensions #
Extension methods for num, to make specifying durations easier. For example: 2.seconds, 0.1.minutes, or 300.ms.

Made with ❤ by Igor Miranda
If you like the package, give a 👍

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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